illustration

Nymphaea gigantea is a species of aquatic perennial herbaceous plant native to Australia and New Guinea.[2][3] N. gigantea is a tropical and sub-tropical species that establishes tubers in the muddy bottoms of still waters. Petals can be seen to be a light purple-blue when they first blossom. As they become mature plants they become a light blue, or can even be white.[4] Due to its blue-white color, it is also known as “Blue Cloud", and typically flowers between the months June and July. Source: inaturalist.ala.org.au/taxa/334777-Nymphaea-gigantea

Simple to current times, but so ahead of its time then.

The XP-51 (an actual production Mustang - 2 were given to the USAAF from the first batch of Mustang Mk Is being built for the RAF) was a "down-stream" derivative of this aircraft. This is P-509, a proposal for the USAAC, drawn in the late 1930s and refined into a more final drawing in late 1939. The Mustang family of aircraft definitely were the result of this "concept" --- but the actual aircraft built were very different in size, armament, etc.

Crotalaria is a genus of flowering plants in the family Fabaceae (subfamily Faboideae) commonly known as rattlepods.[1] The genus includes over 700 species of herbaceous plants and shrubs. Africa is the continent with the majority of Crotalaria species (approximately 400 species), which are mainly found in damp grassland, especially in floodplains, depressions, and along edges of swamps and rivers, but also in deciduous bushland, roadsides, and fields. Some species of Crotalaria are grown as ornamentals. The common name rattlepod or rattlebox is derived from the fact that the seeds become loose in the pod as they mature, and rattle when the pod is shaken. The name derives from the Ancient Greek κρόταλον, meaning "castanet", and is the same root as the name for the rattlesnakes (Crotalus). Crotalaria species are used as food plants by the larvae of some Lepidoptera species including Endoclita sericeus, Etiella zinckenella and Utetheisa ornatrix. The toxic alkaloids produced by some members of this genus are known to be incorporated by Utetheisia larvae and used to secure their defense from predators. Source: en.wikipedia.org/wiki/Crotalaria